450 nm Gallium Nitride Alternating Current Light-Emitting Diode Hartensveld, Matthew ; Melanson, Bryan ; Thirupakuzi Vangipuram, Vijaygopal ; Zhang, Jing Abstract Publication: IEEE Photonics Journal Pub Date: December 2020 DOI: 10.1109/JPHOT.2020.3032382 Bibcode: 2020IPhoJ..1232382H